Since the anatase type and the plate-type titanium dioxide are converted into a rutile type at a high temperature, the melting point and boiling point of the plate-titanium type and anatase type titanium dioxide are practically absent. Only the rutile type titanium dioxide has a melting point and a boiling point, and the rutile type titanium dioxide has a melting point of 1850 ° C, a melting point in air (1830 soil 15) ° C, and a melting point of 1879 ° C in oxygen enrichment, and the melting point is related to the purity of the titanium dioxide. The rutile type titanium dioxide has a boiling point of (3200 ± 300) K, and titanium dioxide is slightly volatile at this high temperature.
